Cruisers Forum

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
Thread Tools Search this Thread Rate Thread Display Modes
Old 19-04-2016, 21:23   #1
Marine Service Provider

Join Date: Jan 2008
Location: Chessapeake
Boat: Island Spirit 401 Catamaran
Posts: 530
Gel battery spacing

I am putting on a new set of six gel batteries for my house bank. Their dimensions are different from my old batteries and I could get all six into a space that previously contained only four. However they would be very tight and air circulation would be limited. (The own configuration actually had six sealed lead acid batteries in this space too but I do not put air of stock in their work.)

How much space do I need between gels to minimize over heating? Could I compensate by putting in a muffin fan?

Sent from my iPhone using Cruisers Sailing Forum
Ostinato is offline   Reply With Quote
Old 21-04-2016, 04:55   #2
Registered User

Join Date: Apr 2016
Location: Lake Belton, TX, USA, Earth: 3rd rock from the Sun
Boat: Vagabond 14
Posts: 421
Re: Gel battery spacing

Depends on the current demand.

Low current demand will mean little heating and thus little cooling needed.

High current demand and with inadequate cooling you can bake a cake over the batteries (just before they explode)

A fan to circulate air will help with cooling.
Do you need it? Don't know.
If you need it will it be enough? Don't know.

An expert could tell you exactly what cooling/spacing/fans you might need if you know the max amp load and list the number of batteries and their type.

I know the basics of how to test... and I tend to opt for more cooling than I need. (I have some batteries in extreme demand service, but not gel cells)

More battery capacity means more current before things get hot... So just adding more batteries you are cutting the need for cooling.

Look at the spacing of batteries in a golf cart. The spacing is to let the batteries cool under worst case expected conditions. They have a substantial load when there's a couple of "rotund" golfers on board and going up a hill.
TurninTurtle is offline   Reply With Quote
Old 21-04-2016, 05:41   #3
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Jacksonville/ out cruising
Boat: Island Packet 38
Posts: 31,475
Re: Gel battery spacing

My charger will display my battery temps, out of curiosity I've watched as my 660 AH bank is being charged with 185 amps of charger.
Temp rise seems to be about 2 F, but less than 4.
I figure 185 amps is my worst case, I'll never have that much of a draw and rarely do I charge at that rate either.

If Gels are similar to my AGM bank, I wouldn't worry about it, but what will be your high amp draw, sustained? If 10 amps or so, I don't think you have to be real concerned. Plastic battery cases don't shed heat well anyway
a64pilot is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Spacing of davits mlibkind Auxiliary Equipment & Dinghy 1 23-08-2015 07:35
New "super gribs" (0.25° spacing) in OpenCpn sailorF54 OpenCPN 12 02-02-2015 11:35
Tight Anchorage Spacing? F51 Anchoring & Mooring 69 20-02-2013 05:53
Lifeline Stanchion Spacing nv5l Construction, Maintenance & Refit 6 16-02-2011 20:48
To Gel or Not to Gel - That Is the Question Fishman_Tx Construction, Maintenance & Refit 137 21-12-2009 16:49

Advertise Here

All times are GMT -7. The time now is 08:23.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.